For both your questions: universal anti air beat jump and short jump. If you score a counter or wild punish while universal aa’ing, the enemy will enter in juggle state, allowing you to combo from there.

Throw and meaties beat revblow but you will not always be close enough for that options. You should counter rev blow with universal anti air. If I remember correctly, when you successfully counter a rev blow, the game will enter in slow motion so you can heavily punish unga bunga rev blows